As if this music video couldn't get any more HIGHlarious!
Check out the extended, eight minute version of Katy Perry's new music video for Last Friday Night (T.G.I.F.), which features cameos from Darren Criss, Rebecca Black, Kevin McHale, Hanson, Kenny G, Corey Feldman, and Debbie Gibson (above)!
See if you can spot them all!
It's too much fun!